<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>

</head>
<body>
<!--2019.3.19-->

<div id="app">
    {{ message }}
</div>

<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
<script>
    let app = new Vue({
        el: '#app',
        data() {
            return{
                message: '我爱你 Vue!'
            }

        },
        methods:{

        }
    })
</script>
</body>
</html>